STUDY ON THE EFFECT OF THE USE OF DIETS CONTAINING DIFFERENT LEVELS OF CRUSHED DATE SEEDS ON GROWING ASSAF LAMBS

M.F. Al-Banna, I.E. Abu Showayb, H.A. Al-Shanti
This study was conducted in the farm of the Al-Ahlyia Society for the Development of Palm and Dates (ASDPD) to use the remnants of palm trees (unripe dates, date seeds and palm leaves) in feeding animals (sheep, goats and rabbits) in order to find out the possibility of using concentrated feed as alternative to manufactured fodders and replacing traditional food. We used 20 crossbred Assaf lambs (a breed from 5/8 Owasi×3/8 Freisian) with an average body weight of 27± 2.0 kg which were divided randomly into four equal experimental groups (4 lambs each) to investigate the effect of including date seeds and palm leaves in diets on the growth performance of growing crossbred lambs. The feeding trial lasted for 120 days (1 May-3 September 2009). The animals fed restricted roughage of 600 g/day chopped palm leaves, while concentrated feed mixture (CFM) was offered ad lib (control). Crushed date seeds substituted 50, 75 and 100% of corn and barely in CFM in diets of T1, T2 and T3, respectively. Soybean meal was used to adjust the protein content in treated diets, so the experimental rations were iso-caloric and iso-nitrogenous. The concentrate: roughage ratio was 85:15 approximately. We weighed animals every 2 weeks. Blood samples were taken monthly to assess the effect on animal health. We studied the average growth rate and body changes of the animals, quality and characters of the animal meat and quality and body build of the animal, biochemical and hematological change of the blood, digestibility of the food and the economic effect.
The results showed an increase in the animal weight in T1 and T2 compared with the control during the period of study while there was no difference between the control and T3. The average weight was 283.3-300 g daily. and this increase is a standard by previous studies. There was no difference in the actual weight between the control and T2, T3 but the control with T1. There were no significant differences between the treatments compared with the control in the growth rate only that there was a daily increase in T1 compared to the control.
About the effect of feeding on carcass trials of male sheep lamb, its clearance ratio was almost similar in all groups (50.43, 50.05 and 49.66%) including the control (50%). We observed that the food given was useful and nutritious to the animals. When we studied the muscle mass, bone thickness and fat in all the groups we have observed similarity in all groups in distribution but extra fat in T1 (221.12 g) about 28.86% of fat increment in the control and other groups. From another side there is no difference in the blood picture (Hgb and HCT) in all groups but only little not effective difference, even if there was a better blood picture.
Economically we found less cost in group T3 than in the control group ($ 1.1 in T3 and $ 1.53 in the control/cost of 1 kg of increment in animal weight).
Regarding digestion we found there is an increase in the average digestibility in T1, T2 and T3 compared with the control group and there was improvement in protein and fiber digestion.
Conclusion: we conclude from this study that it is possible to bring a full component of the diet of some commercial palm waste to feed animals (sheep and goats) without any adverse effect on their life and there was a clear reduction in the cost of food to produce kg of live weight of sheep and goats and it can be concluded that substitution of corn and barley by crushed date seeds can be used to improve the growth performance of Asaf lambs.
Al-Banna, M.F., Abu Showayb, I.E. and Al-Shanti, H.A. (2010). STUDY ON THE EFFECT OF THE USE OF DIETS CONTAINING DIFFERENT LEVELS OF CRUSHED DATE SEEDS ON GROWING ASSAF LAMBS. Acta Hortic. 882, 1141-1152
DOI: 10.17660/ActaHortic.2010.882.132
https://doi.org/10.17660/ActaHortic.2010.882.132
date seeds, Assaf lambs, growth performance
English

Acta Horticulturae